先简支后连续梁桥的施工质量控制要点有（）。A.预制拼装 B.后浇段工艺控制 C.体系

第二节 完型填空（共20小题；每小题1分，满分20分）
阅读下面短文，掌握其大意；然后从36—55各小题所给的四个选项中选出一个最佳答案。
You may go to karaoke or disco clubs with your friends during the summer holidays. But be careful. In these   36   places you may see people selling small, colorful pills. Make sure you don’t try them.
The seller   37   say they are safe and can help you enjoy yourself or   38   from sadness. They may even offer you a free    39  , and tell you that everybody is using   40   .
But you must be alert to the   41   that these drugs could destroy your life.
When you put them into your body, often  42   swallowing, breathing in or injecting, drugs find their way into your brain.
Drugs may either speed up  43    slow down your senses. Their effects are different depending on body size, shape, and chemistry.  44   it can make you feel good at first, a drug can do a lot of  45    to your body and brain.
One of the most popular drugs in nightclubs is the so-called head-shaking or ecstasy pill. The drug hits users with a fast high speed,   46  them feel powerful and full of   47  . Heart rate, breathing and blood pressure   48  risking damage to your nerve system(神经系统). Marijuana(大麻) is a   49   used illegal drug. It is called the gateway drug, because using it sometimes   50   harder drugs. It is mostly smoked in a cigarette.
There is  51    risk related to taking drugs that must be   52   . Sharing a needle to inject a drug puts a user at a very   53   risk of being affected with HIV.
Drugs may appear in many different   54   , some with cool names, but taking them could
55   your health forever.
36．A．boring   B．exciting     C．noisy        D．surprising
37．A．may      B．must           C．should       D．can
38．A．keep     B．stay           C．escape       D．stop
39．A．drink    B．try            C．cigarette     D．taste
40．A．it       B．him           C．her           D．them
41．A．fact       B．problem       C．trouble       D．reality
42．A．with      B．for           C．by         D．in
43．A．and       B．so           C．but           D．or
44．A．Although B．Because     C．If             D．Despite
45．A．hurt      B．injury       C．damage        D．harm
46．A．driving  B．having      C．making        D．keeping

1,3,5

47．A．food     B．energy         C．hope         D．interest

48．A．develop  B．grow        C．rise         D．increase
49．A．deeply   B．widely      C．strongly      D．highly
50．A．prevents  B．causes        C．leads to       D．aims at
51．A．the other  B．other       C．others       D．another
52．A．avoided  B．taken       C．missed       D．interrupted
53．A．big      B．high        C．large           D．wide
54．A．tastes    B．smells        C．colours         D．forms
55．A．kill      B．break       C．endanger      D．ruin